Okay, reader-chans quirk is:

Chesire's Grin:

User not only can disappear at will like a Chesire cat, but they can also force people into illusions. User has cat like features, including tail and ears. Special move is called Limbo, it is a wide range hallucinations that can be cast across a large area, but the time limit on it is 1 hour. Drawbacks include user also seeing the hallucinations that they are showing others, bleeding from eyes, ears, and nose, and going into a coma.